habitual bitcher
A human who talks about problems like they're the main event. They never shut up about their misery.
'I had a bad day at work. My boss yelled at me. My coffee was cold. My printer didn't work. My life is a disaster.'
'I can't take it anymore. My coworker talked too much, my phone died, and my lunch was sad.'
'I'm going to die of complaints. I have too many problems to handle.'